/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.confignode.client.async.handlers.rpc;

import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
import org.apache.iotdb.common.rpc.thrift.TSStatus;
import org.apache.iotdb.confignode.client.DataNodeRequestType;
import org.apache.iotdb.rpc.RpcUtils;
import org.apache.iotdb.rpc.TSStatusCode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;
import java.util.concurrent.CountDownLatch;

/**
 * General RPC handler for TSStatus response type
 */
public class AsyncTSStatusRPCHandler extends AbstractAsyncRPCHandler<TSStatus> {

    private static final Logger LOGGER = LoggerFactory.getLogger(AsyncTSStatusRPCHandler.class);

    public AsyncTSStatusRPCHandler(
            DataNodeRequestType requestType,
            int requestId,
            TDataNodeLocation targetDataNode,
            Map<Integer, TDataNodeLocation> dataNodeLocationMap,
            Map<Integer, TSStatus> responseMap,
            CountDownLatch countDownLatch) {
        super(requestType, requestId, targetDataNode, dataNodeLocationMap, responseMap, countDownLatch);
    }

    @Override
    public void onComplete(TSStatus response) {
        // Put response
        responseMap.put(requestId, response);

        if (response.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {
            // Remove only if success
            dataNodeLocationMap.remove(requestId);
            LOGGER.info("Successfully {} on DataNode: {}", requestType, formattedTargetLocation);
        } else {
            LOGGER.error(
                    "Failed to {} on DataNode: {}, response: {}",
                    requestType,
                    formattedTargetLocation,
                    response);
        }

        // Always CountDown
        countDownLatch.countDown();
    }

    @Override
    public void onError(Exception e) {
        String errorMsg =
                "Failed to "
                        + requestType
                        + " on DataNode: "
                        + formattedTargetLocation
                        + ", exception: "
                        + e.getMessage();
        LOGGER.error(errorMsg);

        responseMap.put(
                requestId,
                new TSStatus(
                        RpcUtils.getStatus(TSStatusCode.EXECUTE_STATEMENT_ERROR.getStatusCode(), errorMsg)));

        // Always CountDown
        countDownLatch.countDown();
    }
}
